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Welcome to Wikipedia. Everyone is welcome to contribute to the encyclopedia, but when you add or change content, as you did to the article Cocaine, please cite a reliable source for your addition. This helps maintain our policy of verifiability. See Wikipedia:Citing sources for how to cite sources, and the welcome page to learn more about contributing to this encyclopedia. Thank you. Materialscientist (talk) 08:16, 2 October 2011 (UTC)Reply

October 2011

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  Please do not add or change content without verifying it by citing reliable sources, as you did to Cocaine. Please review the guidelines at Wikipedia:Citing sources and take this opportunity to add references to the article. Thank you.

Please take a moment to look at Wikipedia's policy concerning reliable sources. Thank you! bonadea contributions talk 14:16, 2 October 2011 (UTC)Reply